Furnace



7 1,688,105 M. BARAN FURNACE Filed Nov. 19, 1927 2 Sheets-Sheet 1 Oct; 16, 1928.

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Patented Oct. 1 6, 1 928.

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PATENTOFFICE.

MICHAL BARAN, OF HARVEY, ILLINOIS.

FURNACE.

Application filed November 19.1927. seriaino. 234,360.

-The present invention relates to furnaces or hot air heating plants and its main object is the provision of means in a furnace for maintaining uniform temperature through out its length.

Another object of the invention is the provision of multiple hot air-circulating means for maintaining uniform temperature in the furnace.

A still further ob ect of the nvention 1S to I generally improve the construction of furnaces.

With the abovegeneral objectsin view and others that will appear as the nature of the invention is better understod the same consists in the novel construction, combination and arrangement of parts hereinafter more fully described,illustrated in the accompanying:

drawings and; pointed out in the appended claims.

. In the drawings forming a part of this application, and in which like designating cha r acters'refer. to corresponding part-s throughout the several. views.

tal plane on line 11 of Fig.2;

Fig. 2 is a transverse sectional view of the furnace on line 22 ofFig. 1;:

Fig 3 is a lonnitud'naljcross sectional view online 33 of Fig. 2;

Fig. t is a fragmentary cross sectionaljview on line 44 of Fig. 1 ;and v I I Fig". 5 is a cross sectional view takenon line 5-5 of Fi 2. v I

Referring to the drawingsindetailthefurnace includes frontwall 10, rear wall 11, side walls 12 and floor 14. .Said'fioor 1 1 doesfnot extend tothe very front endof theturhace,

but forms downwardly as at15, and. then for wardly as at 16v to provide aslipitl i' .On line with said floor 1 1 and abovesaid ash pit 17 is grate 1S. Above said grate 18 is fire box '19 which is enclosed by side walls 20 and arouate ceiling 21, which providesa flcoirfor heatinn; chamber 22. as clearly scenon Fig.2. Said arcuate ceil1ng'21, haslateral continua-- tions 21 for completing the floor of heating or muffle chamber 22. r

The forward end ofsaid fire box 19 is provided with door 23 through which fuel is supplied to said firebox 19, and door 24:. positioned below said door 23 provides communi cation with the ash. pit 17 for removing asliies.

,Uommunieating with said fiise chamber. .19

Fig. 1 isa cross sectional viewofthe furnace, the view having been taken on hormonhousing 26.

tween heating chamber 22 and'said housing 26, The arcuate wall 28 joined at its side edges with side walls 12, constitutes the up per closurefor saidhousing 26. Said housing 26 is further enclosed by wall 10 at its front, wall 11 at itsrear and walls 12 at its It is observed that the ends of arcuate wall 2? are spaced fromside walls 12 and connect ed with portions 21of'the floor of said heating chamber 22. I

It is observed that the combustion gases and hot air pass from the combustion chamber 19 to said housing 26 through said passages 25, there being no other communications between said combustion chamber 19 and said I I For forming theouter portionsof said pas sages at points where the upright portlons thereof are located box-like structures 29 are It isifurther observedithat the sides'of saidpassaes are lined with walls 30, whi ch; in their continuity merge with the side walls 30 of the box-like structures29. "Above each passage 25partition Wall 31 is provided whichconstitutes the ceiling for [each of said passages 25. :By their ends said partition walls 31 extend beyond theouter-faces of side walls 12, and constitute lower walls forthe upright portions of said. passages 25.

p 3 Each of said box-like struc'tures 29 is'provided with'plugs 32 fitting in their respective bores madein said structures which provide access to passages25 for the purpose of either removing ashes collected upon the upper face of partition wall 31 or for supervision of the properoperation of dampers 33 which will be hereinafter described. Immediately below each play; 32 temperature gages are provided bymeans of which thefteimperature of: gagesand hotjairpassing through pate p lgovided beyond walls 12 and laterally there- .0}-

- from the fire box becomes greater.

than the passages farther removed therefrom. This arran ement is made for the ur )ose to v c but-e theteinperature"of hot air and comwhich pass from combustion l9to housing 26 through passages V 25, uniformly lengthwise of thehousing 26 T that the heatingchamber 22 maybe uniformly heated throughout its length.

' thereof, thedampers 33 are provided-,which 1 ZLIGPOSltlOllGCl upon Walls 12. Said dampers In order to insure perfect distribution of temperature in the housing 26 lengthwise 33 in cooperation with the outer ends of partition walls 31 are capable of regulating the size of each oi: thepassages vat the r upper horizontal portions or closing the passages entirely when necessary. Thereztorato insure a: perfect distribution of the temperature in the housing 26 for the purposes stated said dampers 33'become ofgreat service. Thus when any one of said dampers 33 is shifted downwardly for decreasing the size of any given passage 25,lessheating air and cmbustion gases willbe supplied through the given passage 25, and the lesseramount of gas and hot 2111 is permitted to pass through such passage the temperature in thehous- ,ing given point willbe decreased or iceversa. I j v H The arcuate wall or root 28 of housing 26 at its rear end adjacent the rear: wall 11 is provided with an opening 35, and a similar opening is made at the iront end of sald roof, adjacent the front wall 10. Saidopen- 35b0mi'nunicates with channel-3*? which is positioned adjacent the upper portionof rear wall 11 and which at its central por-- tion remains in contact with the periphery of roof 2 8. Said channel 3? at one of its ends connectswith a similar channel 38, which latter channelis wider than channel 37. Said channel 38' is disposed adjacent the upper end of sidewalls ,12,, and by its other end connects .w the still wider channel ,39 which is positioned adjacent theupper end of front walllOn Opening 36 in the roof 28 connects us I with saidi'channel 39.

I Said last-named channel a at its other end con'nectswith a stillwider channel 46 which ispos ioned adjacent the upper end of the I other side wall12, all of said four. channels Said last mentioned chann l a positioned upon the vsame horizontal j plane as seen on F gs. 2 and 3;

40 by is other end does not connectwith' channel 37, but

Qblocks the same'by one of its walls asiat 41.

H "From the here'inabove description it WiII'Tarch'and above themufile chamberthrough be seen that the air and combustion gases collected inhousing 26:;will escape through opening 35'into channel 37 and through opening 36 into channel 39, and then through chanellel37, 38,, 3,9,and 40 will pass into chime y a2. a The end of channel 40 adjacent chimney 42 leads into an upright opening 43 and connects with horizontal passage 44:, both made in thechimney wall 45, which opening a l connects with chilnne 42 This arrangementslowsup the escape of the como bustion gases into chimney l2, and thus preserves t he'ma ximum temperature in the furnace. '5

All ofr'saidchannels 3T, 38, 39and 40 are coverec'l with top wall 46 which provides a ceiling -for' the entire furnace, as seen on I Fig, 2.

The rear end of heating chamber 22 is open as at 46through which objects to'be, heated in said heating chamber are hauled into or outfot' said heating chamber. By means of door {l7 said opening lti' maybe closed. Said door 47 made of the same material from which i the entire furnace is constructe'd,has an outer lining 48 and reenforced atits'edges by angle irons 4:9. Said d me? is. adapted' tor upright slidingzwithin'a pair ofbrackets 50 positioned adjacent the upright sides of said door 4'7. For preventing said door to shift downwardly a horizontal supp'ortingbraclret 5 1is provided which maintainssaid door -47 in position when the same remains'in its operative condition as shownon Fig.3.

The furnace shown in the accompanying drawings and described hereinabove although preferably is to be madefof fire-proof brick may also be built out of concrete or any other suitable material. i j

-W'hile thereis described herein a preferred embodiment of the present invention, it is nevertheless to be "understood that minor changes may be madetherein without departing from'the spirit and scope of the invention as claimed.

, I claim asrnew is:

- Y A furnace Oran type defined aha ha ing a combustion chamber and the box, a muffle chamber, above the combustion chamber, an arch above the muffie chamber'forming. a passage for hot gases, said combustion chamber 'communicating' with the space beneath the arch .andjaboveflthe mufile chamber through tortuous passages in a vertical plane, partition walls forming the passages, and the walls of the furnace having openings which cornmunicate withthehorizontalsections of the tortuous passages for clean out purposes.

2. A furnace of the type defined and having a combustion chamber and fire box, a muflle chamber above the combustion chamber, an arch above the muffle chamber formlng a passage for hot gases, said combustion chamber communlcat-lng with thespace beneath the tortuous passage waysina Vertical plane,-

partition Walls forming the passage ways, the walls of the furnace having openings which communicate with the horizontal sections of the tortuous passage ways for clean out purposes, said partition walls constituting shelves or trays upon which ashes and soot collect, and certain of the clean out openings being above the partition walls to give access to the same.

3. A furnace of the type defined and having a combustion chamber and fire box, a mufile chamber above the combustion chamber, an arch above the mufl'le chamber formlng a passage for hot gases, lateral box like extensions 1 at the sides of the furnace near its base, said combustion chamber communicating with the g space beneath the arch and above the muflle chamber through tortuous passage ways in a vertical plane, and partly located in the lateral box-likeextensions at the sides of the furnace, means carried by the extensions and movable in a vertical plane for regulating the size of the passages, partition walls forming the passages, the walls of the extensions having openings which communicate with the horizontal sections of the tortuous passage 7 ways for clean outpurposes, said partition walls constituting shelves or trays upon which ashes and soot collect, and certain of the clean out openings being above the partition walls to give access to the same.

In testimony whereof I affix my signature MIOHAL BARAN. 

